Conduit member for conducting fluid under pressure



Aug. 2s, 1923. 1,466,119

c. A. -cL'AFLlN CONDUIT MEMBER FOR CONDUCTING FLUID UNDER PRESSURE Filed Sept. 8 1922 .Tggjl Y ure 1.

Patented Ang. 28, 1923.

sfr-MES PATENT gerrie. 7

CHARLES A. CEAELIN, or MEDFOED, MASSACHUSETTS.;

CONDUIT MEMBER Eon ooivnuornve FLUID UNDER- PEESSUEE.

`applicati@ j sied september To all whom t may concern:

Be it known that l, CHARLES A. CLAELIN, a citizen oil" the United States, residing at Medford, in the county of Middlesex and State oit' Massachusetts, have inventednew and useful Improvements in Conduit Members Jfor Conducting Fluid vUnder Pressure,

' of which the following isva'specification.

This invention relatesv generally to conduits for fluid under pressure, such as compressed air, and including a valved conduit member or section, the Valve of which is adapted to be normally held Closed by fluid pressure inthe ternally applied pressure. y Y

The invention is embodied in the improvements hereinafter described and claimed, whereby said object is attained.

0f the accompanying drawings, forming a part of this speciication, Y

AFigure 1 is aside view of a conduit member embodying the invention. l

.Figure 2 is a sectionon line 22 of Figf Figure 3is a view similar to a portion of .Figure 2, showing the valve stem and lits 'valves in a different position.

' casing including an inlet endportion i12,

-ure 2.

Ythe operator.

formed as a coupling partv adapted to engage a eomplementall coupling part on a A conduit member or ing entirely through p Vrearwardly facing internal valve seat 15,

section 13.'. ASaid endy portion has a longitudinal vbore 14, extendit. and' provided with a and with a forwardly facing external valve seat 16` spaced from the seat 15. n

The casing also includes an outlet endl portion '17, to which a nipple 18 fmay be coupled, said outlet portion being substantially in alinement withthe inlet portion. 'The outlet portion 17 is.Y connected withand spaced from the' inlet portion 12 byan `1n- 'same plane, and offset oppositely conduit, and opened byexalso provided cated in the opening21, and adapted to be seated ont the externalk Vvalve seat 16, as

external pressure apl plied in the opening,

different ,embodiment vof the `inacted on thereby, the conduit sectionnozzle may beV graspedl and s, 1922. serial N. 5se,s92.

termediate portion communicating withthe bore 14, between the valve seatsl 15 andV 16, and Communicating also with the Voutlet portion.- Said intermediate portion is composed of two branches 20, arranged in the;` from' the longitudinal axis ofthe casing, the iform and' Varrangement of said. branches being such that'an opening 21 is `formed between the branches and between the end portions 12 and 17, as shown by Figure 2, said opening communicating .with the ,external valve seat 16.,v

23 represents anv elongated stem Vwhich is longitudinally edto be seated `on the internal valve seat 15,.

. by fluid pressure in the conduit to close the inlet end, as sho-wn byfFigureB. The stem with an outer valve 25,v loshown by Figure' 2, by

as by a iingerof the operator, toppen the-inlet end ,and preventl the escape of Huid into the opening.V The valves 24 and 25'areso spaced. apart` that when either is closed on its-seat, the other is opened.

The'stein 23 is provided with an enlargei I ment 27, which has a sliding lit in the outer portion of the bore 14, to' preventlateraliV displacement' of the fstem. A portionI of the Vbore 14 is enlarged to permit fluid to iow whenthe i'nner valve 24 is opened, and provided with valve-guiding'ribs 14a'.

`The conduit member Vas compressed air to impinge. on a surface 13 being flexible, or freely'movable, so thatthe Said Amoved about by one hand ofthe operator, to direct the jet as desired', the arrangement being suchr that a linger of the same inthe openingv 21 and pressed' against the outer valve 25, to hold the inner'valve open. When the pressure is removed,' the inner valve is closed by fluid pressure 'withinthe conduit, so that when the `conduitmember Vmovable in the bore 14, and v.1s provided with an inner valve 24, adapt- Y described, is adapted 'for use as a nozzle, tocause a jet of ornozzle isl dropped, it becomes inopera-H tive. e v l To prevent'contactgbetween the enlarged pressure reeeivmgfhead 25a o'V-the'outer valveand a iloor on which-the membermay hand may be inserted"100 Vmunicatingg` with the branch be dropped, lprovide the bi-'a-nches 2O with outwardly projecting ribs 30,".ar'rangcd to protectv said head as indicated by Figure l.

Figure i shows one of the branches of the intermediate portion separated Vtrom the inlet end'portion l2 by a partition 3l, andi adapted to cond-uct liquid to the outlet end` portion 1,7, means being provided adjacent to the inlet end portion VVfor admitting` liquid to thev said branch, which in this ligure is designated 20a.

The outlet `end portion 17 is provided with vmeans for subjecting liquid conducted by the branch 20 to the atomizinp; action oi: air conducted by the other branch 20.

j 32 represents an internally'` threaded socket, formed on the outlet end portion l2, and providedwith flat seat at its inner end, and with acontracted'outlet 34, com- QO.' 35 representsa threaded nipple, coupled at'one end to a liquid supply tube 36, and having` an innerv end face, adapted to be closed on the seat 33, to shutoff the flow ot liquid through ,the outlet 3%, and to be separated to any eX- tent desired from said seat, to permit a regu- .,late'dflow. `The nipple '35 is vprovided with Y to prevent leal(- an elastic packing ring 35l age yoit air and liquid.`

3 8 represents a plugr Vsecured in the `outlet portion 17, and provided with a contracted nozzle 39, communicating throughV a passage i() with the air-conducting;'branch 20. The plug4 is also provided with a discharge 'or Y i outlet bore y 4l, ywhich Ycommunicates bot-l1 with the'nozzle' 39 and the branch 20a. `The arrangement issuch that liquid conducted "by the' branch 2Oil is atomized by air conducted by thebranch 20 and nozzleA 3Q-and ldischarged through the outlet il inf the iorm of spray/. y

The nipple 85 maybe secured sired adjustment by locl-nuts-li.

at any de- -The -conduit member formed as described, to pro- Vvide an opening 21 between an inlet and-fan outlet portion, may be used as an automatic drain valve, asshown by Figure 6, the inlet portion l2 being' coupled toA a fixed 'conduit member 44, and the valve. Q4; and 25 being acted on by a springv 46 housed in the opening 2l, and acting to normally hold thevalve 25 closed, and the valve 24e'open, the tension of the spring being' such that it is adapted to yield to fluid' pressure, tending to close the valve 24;. Y y

The conduit'member i-1i may be a branch of a pipe line conducting steam, for example, to a nozzle, whereby the steam is discharged into boiler'tubesV to remove soot therefrom,

"the member i4 being arranged to receive water of condensation accuniulating` in Vthe 1 pipe line when the blower is not 1n use. rllhe torce ofthe spring-- Vis such that when there fis'no steam pressure in the' pipe line," the outer' valve 25 s'held closed,v 'and the inner Yas specified byclaim valve 24- held open by the spring, so that the waiter escapes through the outlet portion 1T, and througha waste pipe 48. VVhen steam is admitted to the pipe line, the inner valve 2li is Yclosed by the Vstam pressure. The opening 2l in this, as well as in the previously described embodiments of the/invention, permits theY application of pressure to the stem 2S anditsvalves, at a point out- Yside the bore or conducting portion the conduit KYmember', y that an automatic drainvalve, Vthespring i6 isrea-dily acces-'1 siblejtor removal and replacement, and isnot subjected to contact with the conductedV fluid. l Y Y When the `conduit member is movablcby the hand oli the operator, its inlet end.- por- Y tion is coupledl to a section` of Flexible hose 49, and the member-.is grasped by one hand,

the liore finger oit' which is inserted in the oY enin'ev 2l and bears 'on the outer head 25a i asshown by Figure?. The stem 23 and lits valves are vfreely rotatable to"V distribute the wearo'f thevalves 2li and 25 and their seats. The stem is coaxial with the inlet portion 12, kso. that the fluid pressure on the valve 24 moves the stem and valves end-wise andretfectively closes'the valve 24.

l elaim': Y l l. A valved conduit member eomposedof a' easing 'comprising an inlet end portion formed as a coupling part, adapted'toenf a complemental part on anotherconlduit member, said end portion having a longltudm al bore extending through 1t, and pro vided with a rearwardly vfacing internal valve seat, anda forwardly*A facing'externalY .vai'lve'seat,spaced from the internal'seat, an 'o'ut'le't end portion spaced trom-and substantially in alinement with ,the'inlet end'portion, and -anf intermediate vportion communicating with the bore of the inlet portion between said valve seats, and with the outlet portion,

said intermediate portionA including two branches, f arranged in the same plane, Vand ollset oppositely from i the o axis of spaced apart that when 'either is opened,theY other is closed, ythe said opening Y being! formed to receive the said outer valve andV Vpermit theapplication of pressure thereto, to "close the outer and open-the inner/valve.

12. A valved conduit member substant-iallyf the branches et the@ intermediate portion being lprovided with 3. A valve conduit substantially as specified by claim l, one of the branches of said intermediate portion being separated by a partition :from the said'inlet end portion, and adapted to conduct liquidto the said outlet end portion, means being provided adjacent to the inlet end portion for admitting liquid to the liquid-conducting branch,

the outlet end portion being providedvvith` means 'for subjecting liquid conducted by said branch to the atomizing action of air conducted by the other branch. j

4. A valved conduit substantially as specified by claim l, one of the branches of said intermediaterportion being separated by a partition from the saidl inlet end portion,

and Vadapted to conduct liquid tothe said outlet end portion, said liquid-con-` ducting branch having an V'internally threaded socket adjacent to the inletrend portion, and provided with a seat at its i inner end, a contracted lateral outlet commimic-ating with the said branch, vand a threaded nipple engaged With said Socket,

and having an inner end Jface adapted to lloe I closed on said seat, to shut oli and regulate the Vflo'vv of liquid, the outlet end portion be# ing provided with a plug having means for ksubjeoting liquid conducted by s aidbranoh to the atomizing action of air conducted by the other branch.V v

^ In testimony whereof lI have aiixed my signature.

CHARLES A. CLAFLIN.' 

